I think my exhaust may be hitting part of the brake line. The car has a MAC catback. I noticed yesterday that it was rattling very loud. You could defiantly tell that it was the exhaust. I took a peek last night under the car and noticed what looked like brake fluid on the rear axel and on the exhaust. It looks like there is a bracket or fitting that connects the rubber brake line from the right rear brake to the hard brake lines. It looks like the hard brake line screws into this thing. Is that right? I think the exhaust may have been hitting it and loosened it up. I guess my question is does the hard brake line just screw in? Anyone know the size? Just looking for some more insight before I jack up the car and try to take care of it